Automatic stopping mechanism for line-casting machines.



S. E. SPERRY.

AUTOMATIC STOPPING MECHANISM FOR LINE CASTING MACHINES.

APPLICATION FILED MAY27 I9I3. RENEWED AUG. I7, I915.

' Patented Feb. 29, 1916.

2 SHEETS--SHEET I.

am I

S. E. SPERRY.

AUTOMATIC STOPPING MECHANISM FOR LINECASTING MACHINES.

APPLICATION FILED MAY 27, I9I3- RENEWED AUG. 17,1915.

1,173,? Patented Feb. 29,1916.

2 SHEETSSHEET 2.

INVENTOR azzaae Z 6 T y I WITNESSES:

SAMUEL E. SFEERY, GE NO011 51 131"LN, NEW] 03K,

ASSZGN'OE TO ENTERHATIGHAL TYPESETTING MACZIH'TE COMPANY, GE NEW YORK, 11'. A GGRP$BJATXON 9Z3 AU EQZ XATIC EST OPPIING IZ'JIECHANISIE 1 T, LlNE-CAST'KNG' MACHINES,

chines of which the foiiowin is a s )ecificm tion.

This invention rebates to improvcmen in n'mchincs oi the iinosype class and is appiicii to thc mechanism for stopping the inui-hinc should a, iine of lnzli'l'i es for any reason he impropci-iy presented to the mold.

The pi'ii'nai'y obj-cot of the in vcntion is provide stopping mechanism which is actuated by the molds to autoiniiicziiiy interrupt the c 'ieictioli of thc zimchinc should a iinc oi inziti'iccs he in'ipropciiv presented to i-hc mohi and is capable of usc with a mold wheel carrying fontnioicis as Wiii as one carrying; one or two molds.

To this cnd, the invention consists in. cermin improvements and combinations and arrangements of parts, oi] as will be hominziftci' more fully described the novci feafiiil'cs being pain-tori out pnz-iicuiariy in the claims at the cml of the specification.

in the accoi'npzinyi'ng; di'm'i 1-Fignre l is a front cicvntioii of it portion of :1 mnchinc of this class showing the mold-can'- rying (iisk or vshcci and thc cooperative 1 the mnchinc; Fig". 2 shows the parts l as vic'ivcd from the loft, (within the parts being in scction; Fig, 3 is H (ictiiii cnim'gcii ViOW of parts of the stop ping mechanism as shown in the preceding figui'cs; Figs. 4-, and G are vicwssimiiar to Fig. 2 but showing: the parks of the machine in (.iificrcnt positions.

Similar pin-ts arc designated by the same reiez'encc chmmters in the several views.

he accompanying; drawings show the present invention as applied to a line coinpcsing and iinc casting machine of the Wcii known iinotype class, wherein each line of matrices and spziccis is carried to and from the casting level by e rccipi'ocatory elevator and. the mold in which the type-bar or slug is to be cast is moved to and from the line of matrices While the latter i at the casting level.

in the present instance 1 designates we Specification of Letters Eatenc.

Serial 3%. isms I!()i(iCii11"yiDg ciisk or whee having four molds mounsed thereon,

. 3 designates the elevator commoniy known as the first eievafior which is guided to siide vci-iicaiiy on the vise frame anti the visa cup 5 fixed thereto, and this cicvctoifims an overhanging head i; at its upper end which is provided with jaws 7 adapted receive and support a iine composed of meiiices M and spaceis S. The line of matrices and spacers is received by the elevator While she iii-titer occupies the position shown in 1 and 2 as is Well known, and the line of II'HLtFiCPS and spacers is lowered by the (36- scent of the eievatcr to a, position-beizween thcicws of a vise 8 whichiafiter operates in a well known way to clampenci confine the iinc in. an cmiwise direction. The mold carrying wheel or disk 1 is mounted usually on :1 siide which operates as epm'epi'iai'e intci'viiis to czw'y the zippi'opri'e maid againstthe line prepcmeory to the casting operation and to retract the moiii from the line after the cast has been made. Fig. i shows the eievatoi' in its lowered position and bhc line of mairices at the proper level in relation $0 the mold to ailow the'molci to aiivancc toward and into engagement with the line of matrices and spacers. Each n'mici is formed with a groove 9 adapted to receive anci cooperate with the iugs or cars on the matrices whereby correct aiiinementof the masi'ices is cibtainecii Should ih'e cicvacor for any T635021 faii ilfl bring the line to the 'pi'cper casting icvci die inoid will :s'm'ike the iowev hzgs on the matrices zmii crush or damage them uniess the machine stopped before the moiri comes against the matrices. Means, therefore, has been providcci for stopping the machine autom aticaiiy shouid theeievatcr faii to reach e position where the matrices occupy the proper casting ieveL In the present com struction, a vertically movable rod 10 is shown for this purpose, the "13131251 end of this rod extending through the vise can 5 Wi'iereby it may be engcgeci enci depressed icy ihe heed of the eievzitoi', aid the lower cnd of this rod-is in a, position to cooperate with a lever 11. the latter being connected sothe main clutch which controls the operw Men of machine: This r001 18 is heidi normeuy 2111C; yieldingiy in its upper pcsi is arranged to cotiperate with a plunger 14.

This plunger 14: is reciprocable longitudinally in a cross-member of the vise frame 4, as shown in Figs. 1 and 2, and 153 provided with a compression spring 15, one end of.

which abuts against a screw 16, this spring. acting normally to move the plunger 14 in a direction away from the rod 10 and toward the mold wheel. When the elevator descends to av point where the line of matrices and spacers will. occupy the proper casting level, the head (3 of the elevator will then rest on top of the vise cap 5 and the rod 10 will be depressed by the head 6 of the elevator to a point where the tooth or projection 18 will be below the level of the plunger 14-, and when the mold wheel is shifted forward to bring the appropriate mold into casting position against the line of matrices and spacers, the bottom mold on the mold-carrying wheel will bear upon and shift the plunger 14 forwardly and its forward end will pass over the tooth or projection 13 on the rod 10, as shown in Fig. 6. If, however, the elevator for any reason fails to descend to a point where the line of matrices and spacers will occupy the proper casting level, then the forward motion of the plunger 14 (under the influence of the mold wheel) will cause the forward end of the plunger 14 to press against the rear side of the rod 10,- thereby deflecting this rod and causing the lever 11 which is acted on thereby .to disengage the main clutch and interrupt the operation of the machine, thereby avoiding dama e to the matrices or to any other part 0 the ma chine. Such operation is well known in machines of this class and is described in the patent to O. Mergenthaler, No. 436,532, dated September 16, 1890.

In machines of this class, the mold wheel is not only advanced or moved forwardly for the casting operation, but is also auvanced or moved forwardly when the slugs are ejected from the mold and trimmed, and this second or intermediate advancing movement of the mold wheel occurs while the elevator is in an upper position. has much as the elevator cannot act upon the rod 10 while it is in raised position, it is necessary, especially where four molds are used upon the mold wheel, to provide means for, preventing action of the plunger 14 upon the rod 10 whereby the running of the machine will not be interrupt-ed during the slug-ejecting operation although the stop mechanism will interrupt the running of the machine should the elevator fail to correctly present the matrices to the mold. The present invention provides simple and effective means for obtaining these results whereby the stop mechanism is operative when the mold is advanced for the casting operation and is rendered inoperative when the mold is advanced at the time of the slug-ejecting operation. In the present constructiomthe forward end of the plunger 14 is provided with a pin 17 and is formed with a recess 18 behind said pin. A shaft 19 is mounted in a bracket 20 secured to one of the crossmembers of the vise frame 1, and a pair of arms 21 and 22 are fixed to the shaft 19, the arm 22 having a pin or dog 23 suspended therefrom by a pivot. The link 2 1 which operates the justifier 25 is also provided with a cam lug or projection 26 which is arranged on the forward side of the link and is adapted to cooperate with the arm 21 whereby the operation of the stopping means for the machine is controlled.

The operation of a machine equipped With the present invention is, briefly, as follows:--The parts normally occupy the position shown in Figs. 1 and 2, the elevator being then in a position to receive a line composed of matrices and spacers. At this time the bar 25 which serves to drive up the wedge spacers S occupies a position slightly above its lowermost position, and the 111;; or projection 26 on this link then engages the arm 21 of the controlling device, thereby holding the pendant pin or dog 23 up clear of the pin 17 in the plunger. In the next operation, the elevator descends and lowers the line of matrices and spacers to the castmg level and the mold is then advanced against the line whereupon the cast is made. Fig. 6 shows the parts in this position, the plunger 14 having passed over the tooth or projection 13 on therod 10 which latter is pushed idpwn to its lowermost position by the head bn the elevator. The justifier 25 is then driven up against the wedge-shaped spacers S by the link 24:, carrying the lug or projection 26 past the arm 21, and allowing the pin or dog 23 to descend by its own weight and assume a position behind the pin 17, as shown in Fig. 6. While against an abutment 27 formed on the vise' frame to sustain'the thrust of the spring which actuates the plunger 14-. After the mold has been retracted, the elevator rises and carries the line to the distributing mechanism, and hence the elevatorno longer acts on the rod 10. The mold Wheel or disk is rotated to bring the mold containing the cast slug to the ejecting position and is also advanced again during the slug-ejecting operation and while the elevator is in raised position. If the plunger 14 were not retained in forward position by the pin .33 to prevent rising of the rod 10, this advancing movement of the mold wheel for the slug-ejecting operation would cause the lowermost mold on the mold wheel to push 'the plunger 14 against the rear of the rod 10 and thereby stop the machine. However, such is prevented, as the plunger 14 is retained by the pin or dog 23. the tooth or projection 13 on the rod 10 engaging ben ath the plunger whereby the rod 10 is held in its lowermost position and hence the advancing ot the mold disk for the slugejecting operation does not disturb the operation of the machine. The position of the parts at the time the mold wheel is advanced for the slug-ejecting operation is shown in Fig}. After the slug has been ejected, the mold wheel is retracted and the machine assumes the normal position shown in Figs.- 1 and 2, the link 24 ot the justifying mechanism then rising to a point where the lug or projection 26 thereon will act up n the arm. 21, lit'ting' the suspended pin or dog 23 clear of the pin 17 and thereby allowing the plunger 14 to spring back cl ar of the tooth .or projection 13 on the rod 10 and permitting the latter to rise. This cycle of operations is repeated for the next casting and slug-ejecting operations, the plain ger 14 being in condition to push the rod it) forward and thus stop the machine it this rod is not depressed to the proper point by the elevator when the latter descends to bring the line to the casting level.

I claim as my invention 1. In a machine ot'the linotype class, the combination of an elevator tor bringing a line of matrices, and spacers to casting po sition. a mold-carrying member movable 't'orwardly at intervals for casting a slug and for ejecting the cast slug. justi tying mechanism operative to expand the spacers, a device actuated by the forward movement of the inold-carrying member for stopping the machine should the elevator fail to reach the casting position, and meansactuated bythe justifying mechanism to prevent operation of the stopping device when the mold carrying member moves forwardly to eject the slug.

2; In a machine of the linotype class, the

coml'ination of an elevator for m igin machine should the elevator tail to reach .e

casting position, and a dog controlled by the justifying mechanism for retaining the stopping device in actuated position until after the slug-ejecting operation has been pertormed.

2-5. In a machine of the linotype class, the combination of an elevator for bringing a line of matrices and spacers to casting position, a mold-carrying member movable f0rwardly at intervals for casting a slug and for ejecting the cast slug, justifying mechanism operative to expand the spacers, means for stopping the machine embodying a member movable into a predetermined position by the elevator when the latter reaches casting position, and a plunger actuated by the forward movement of the mold-carrying member into casting position for operating said member to stop the machine when the elevator fails to reach the casting position, and means controlled by the justifying mechanism for retaining said plunger 1n actuated position until after the mold-carrying member has advanced to eject the sing.

t. In a machine of the class described, the combination of an elevator movable to carry a line of matrices and spacers to casting position, a mold wheel. carrying a plurality of molds and movable forwardly to carry a mold thereon into casting positionagainst the line and also movable forwardly to eject a. cast slug, justityin-gmeans for expanding the spacers, a device actuated by one of the molds on the mold wheel when the latter is moved forwardly t'orstopping the machine it the elevator fails to reach the casting position, and means actuated by the justifying meansto prevent operation of the stopping 4 device by one. of the molds on the mold Wheel when the latter moves forwardly to eject a slug.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

1 SAMUEL E. SPERRY.

Witnesses Vv'M. \Vmrssnn, R. W. Hannow. 

